Preliminary results of the PET scan indicate my medications are still working. Yeah!!! This is a HUGE relief. For now, I will continue on Tarceva and the trial medication.

I often get questions about the differences between a PET and CT scan. The simplest way I can explain it – as I understand it –  is PET scans indicate tumor activity while CT scans are a series of xrays that show shapes of organs as well as any abnormal objects. These can indicate a tumor, infection, or scar tissue, etc. The abnormalities are compared to sites of high metabolic activity on a PET scan to determine if any might have cancerous activity. ANd, BTW… a CT scan and a CAT scan are the same thing – Computed Tomography. PET stands for Positron Emission Tomography.

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